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Research Interests:
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Research Interests: Environmental Science, Chemistry, Arsenic, Environmental Monitoring, Air pollution, and 15 moreEnvironmental Chemistry, Mining, Environmental Pollution, Medicine, Environmental Sciences, Copper, Heavy Metal Pollution, Heavy Metal, Lead, CHEMICAL SCIENCES, Bioindicator, Environmental Safety, Plant Leaves, Medical and Health Sciences, and limit of detection
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Research Interests:
Research Interests:
Urban airborne particles contain a wide spectrum of components, known to have harmful effects on human health. This study reports a detailed investigation of fine particulate matter (PM2.5), chemical content and oxidative potential... more
Urban airborne particles contain a wide spectrum of components, known to have harmful effects on human health. This study reports a detailed investigation of fine particulate matter (PM2.5), chemical content and oxidative potential derived from two different urban environments. During summer and winter, 20-day campaigns were conducted at Belgrade city center (urban-background site - UB) and Bor (urban-industrial site - UI). Using various analytical techniques, carbonaceous compounds, water-soluble inorganic ions, major and trace elements were determined, while the oxidative potential of PM2.5 was estimated by dichloro-dihydro-fluorescein diacetate (DCFH-DA) assay (OPDCFH values). The mean PM2.5 concentrations in both urban environments were above the recommended daily value, and the dominant PM2.5 mass contributor was organic matter (29-55%). The OC/EC ratio was significantly higher at UB site during winter, which was an indication of a considerable contribution of secondary organic carbon to the overall organic carbon (OC). Water-soluble organic carbon (WSOC) was also higher at UB than at UI site, and it probably came from the same sources as OC. In general, the different partition of secondary organic aerosol (SOA) in warm and cold periods affected the number of organic components. Sulfates and nitrates were the most abundant ions at both sites and they counted approximately 40% (summer) and 50% (winter) of total ions. Further, the concentrations of the most elements, particularly some potentially carcinogenic elements such as As, Cd and Pb were significantly higher at UI, due to the emissions from the copper smelter complex in the vicinity. The mean OPDCFH values were similar during the summer at both sampling sites, whereas a statistically significant difference between sites was noticed in favor of UB environment in winter.
Research Interests: Environmental Science, Chemistry, Environmental Chemistry, Medicine, Multidisciplinary, and 12 moreEnvironmental Sciences, Aerosol, Airborne Particulates, Total Organic Carbon, Science Technology, Particulate Matter, Ecology and Environmental Sciences, Organic Matter, Urban Area, Life Sciences & Biomedicine, oxidative potential, and Copper smelter
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The adsorption of heavy metal ions from synthetic solutions was performed using sawdust of beech, linden and poplar trees. The adsorption depends on the process time, pH of the solution, type of ions, initial concentration of metals and... more
The adsorption of heavy metal ions from synthetic solutions was performed using sawdust of beech, linden and poplar trees. The adsorption depends on the process time, pH of the solution, type of ions, initial concentration of metals and the sawdust concentration in suspension. The kinetics of adsorption was relatively fast, reaching equilibrium for less than 20 min. The adsorption equilibrium follows Langmuir adsorption model. The ion exchange mechanism was confirmed assuming that the alkali-earth metals from the adsorbent are substituted by heavy metal ions and protons. On lowering the initial pH, the adsorption capacity decreased, achieving a zero value at a pH close to unity. The maximum adsorption capacity (7-8 mg g(-1) of sawdust) was achieved at a pH between 3.5 and 5 for all the studied kinds of sawdust. The initial concentration of the adsorbate and the concentration of sawdust strongly affect the process. No influence of particles size was evidenced. A degree of adsorption higher than 80% can be achieved for Cu(2+) ions but it is very low for Fe(2+) ions, not exceeding 10%.
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Research Interests:
The aim of this research was to investigate the bioremediation conditions of copper in synthetic water. In the present study, copper ions accumulation efficiency was determined using various genetically modified strains of... more
The aim of this research was to investigate the bioremediation conditions of copper in synthetic water. In the present study, copper ions accumulation efficiency was determined using various genetically modified strains of Saccharomyces cerevisiae (EBY100, INVSc1, BJ5465, and GRF18), Pichia pastoris (X-33, KM71H), Escherichia coli (XL10 Gold, DH5α, and six types of BL21 (DE3)), and Escherichia coli BL21 (DE3) OverExpress expressing two different peroxidases. Viability tests of yeast and bacterial strains showed that bacteria are viable at copper concentrations up to 2.5 mM and yeasts up to 10 mM. Optical emission spectrometry with inductively coupled plasma analysis showed that the tolerance of bacterial strains on media containing 1 mM copper was lower than the tolerance of yeast strains at the same copper concentration. The E. coli BL21 RIL strain had the best copper accumulation efficiency (4.79 mg/L of culture normalized at an optical density of 1.00), which was 1250 times more ...
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Background: Numerous epidemiological studies have associated exposure to PM in the outdoor environment to adverse health effects. Nowadays, the attention is paid to indoor air pollution, since peop...
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Numerous studies have reported that particulate matter and its specific chemical constituents were linked to the incidence of respiratory diseases and mortality and lung function. The main aim of this study is to determine metallic... more
Numerous studies have reported that particulate matter and its specific chemical constituents were linked to the incidence of respiratory diseases and mortality and lung function. The main aim of this study is to determine metallic content in PM10 and PM2.5 samples taken simultaneously at several locations in the close vicinity of the copper smelter in Bor and the influence of outdoor PM pollution on indoor PM levels. The measurement campaign was conducted, during the non-heating season of 2020. PM samples were collected at all sampling sites with low-volume samplers (Sven/Leckel LVS3) on quartz fiber filters (Whatman QMA, 47mm). All samples were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP MS). In this way, the mass concentrations of 4 priority elements (As, Cd, Pb, and Ni) in PM samples were identified and quantified. It has been determined that average indoor PM levels in the laboratory were higher than outdoors. A strong correlation was found between PM10 and PM...
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In this paper, there are presented levels of twenty one elements (Ag, Al, As, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, S, Se, Sr, and Zn) in PM10 and SO2 concentration measured at the sampling site in an urban area of the... more
In this paper, there are presented levels of twenty one elements (Ag, Al, As, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, S, Se, Sr, and Zn) in PM10 and SO2 concentration measured at the sampling site in an urban area of the town of Bor (40000 inhabitants) in eastern Serbia. Sampling site was located in densely populated city center about 0.65 km far from one of the largest copper mine and cooper smelter in Europe. For the first time PM10 was collected using Europen standard sampler, during preliminar campaing in duration of 7 days in early spring 2009. PM10 were sampled on PTFE memebrane filters and element concentrations quantified by GF AAS and ICP AES. A concentration level and correlations within trace elements, PM10 and SO2 indicated that industrial activates underpinned with metrological conditions of slow wind speed (calm), are the main factors that influence air pollution in densely populated area. It was evident that both, PM10 mass concentration and SO2 concentr...
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The effect of microstructural changes caused by mechanical modification on adsorption properties of diatomite samples were investigated. The microstructure has been characterized by X-ray diffraction (XRD), scanning electron microscopy... more
The effect of microstructural changes caused by mechanical modification on adsorption properties of diatomite samples were investigated. The microstructure has been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM) while the degree of metal adsorption was evaluated by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP AES). The results show that metal sorption capacity of diatomite is considerably improved after mechanical modification and it can be attributed to amorphysation of the material. Immobilization efficiency increased from 22% for untreated to 81% for the treated sample after 5h at BPR 4.This qualifies natural diatomite as a material for wastewater remediation.
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There is still lack of data in the Republic of Serbia, dealing with the air particulate pollution comparing with EU countries. Consequently, there is lack of information about the relationship between particulate pollution inside and... more
There is still lack of data in the Republic of Serbia, dealing with the air particulate pollution comparing with EU countries. Consequently, there is lack of information about the relationship between particulate pollution inside and outside the buildings for housing or in public institution building. Studies, related to the particulate pollution research, have been only carried out in the past several years. The main objective of this paper is to show the indoor/outdoor relationships between PM (PM10, PM2.5) concentrations in downtown buildings. The Bor town is assumed as representative of hot spot urban-industrial environment in Serbia. PM concentrations in ambient air were monitored at the central monitoring site Park, while indoor PM concentrations were monitored at four public institution buildings (1. Hospital, 2. Museum, 3. Kindergarten and 4. Institute) during 2009 – 2011. According to our results, it is obvious that exposure to particulate matter in hospital and kindergarte...
The Air Quality Plan (AQP) contains a comprehensive analysis of geographic, demographic, climate and air quality data for an area of interest. On the basis of all available data about air pollutant concentrations and prediction of air... more
The Air Quality Plan (AQP) contains a comprehensive analysis of geographic, demographic, climate and air quality data for an area of interest. On the basis of all available data about air pollutant concentrations and prediction of air quality in the future, the AQP provides a series of measures to improve air quality. The global objective of AQP is to ensure that the air quality meets the specified requirements and contribute to the achievement of the commitments, which the government adopted in reducing emissions of air pollutants. Some specific objectives should be as follows: reduce air pollution levels below the specified limit values and target values in areas where such limits are exceeded, keep sub-limit level of air pollution in areas where there is no crossing of the limit values and target values, etc. During the 2012 a team composed of experts from the Republic of Serbia (Mining and Metallurgy Institute Bor) and European Union made the AQP for the agglomeration of Bor, lo...
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The main aim of this paper is to present analyses of temporal variations of particulate matter in Bor (Serbia) influenced by copper production at the Copper Smelter Complex Bor. Particulate emissions are of concern because the presence of... more
The main aim of this paper is to present analyses of temporal variations of particulate matter in Bor (Serbia) influenced by copper production at the Copper Smelter Complex Bor. Particulate emissions are of concern because the presence of fine particles (PM2.5 - particles with diametar less than 2.5 ?m) and ultrafine particles (PM0.1 - particles with diametar less than 0.1 ?m) assume higher risk for human health. Such particles can penetrate deeper into respiratory organs and, at the same time, a probability for such penetration and deposition in the respiratory system is greater. The analysis is based on comparison of SO2 and PM measurements at several locations in the area of Bor town in the close vicinity of Copper Smelter. PM concentrations were highly correlated with sulfur dioxide and inversely correlated with local wind speed during pollution episodes. Presented results indicate that the dominant source of coarse and fine particles in Bor town is the Copper Smelting Complex B...